I want to install OpenAL Haskell bindings for Windows. When I try cabal install alut I get:
Resolving dependencies...
Configuring OpenAL-1.4.0.2...
cabal: The package has a './configure' script. This requires a Unix
compatibility toolchain such as MinGW+MSYS or Cygwin.
Installing MSYS or Cygwin is absolutely not an option. runghc setup configure on the source yields the same thing. This leads me to the following:
How can I install OpenAL with just an installation of the Haskell Platform? I know mingw comes with the Haskell Platform on Windows. Can I use just that to execute this script?
Is there a package that can play audio that installs with cabal on Windows 7 AND Unix based systems?
The source contains hundreds of directives designed for the configure script, which doesn't work on Windows. Is there a version of the source which is platform specific, ie, the script has already been run in a windows environment?
Edit: Context for the problem:
I have a Haskell program, which among other things, plays sound. It is going to be used for demonstration/interactive presentation to students. The computers in the lab run Windows 7. They have the Haskell Platform installed, but not MSYS or Cygwin. I have about 45 minutes to complete this, which doesn't leave time for the installation of needlessly complex and essentially pointless software. If I could get Windows-compatible source code, I could just distribute it with the program I wrote. All the packages I need besides this one will cabal install just fine; this is also a good introduction to package management.
Edit2: cabal install fails with Cygwin installed, as does runghc setup configure
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Just to precise I'm a total beginner in this. I check on the internet and it seems that nothing match to this problem.
My goal is to run this github which is a facial recognition program: https://github.com/anisayari/easy_facial_recognition
So here is the error:
Class RunLoopModeTracker is implemented in both
/Users/pierre/anaconda3/lib/python3.7/site-packages/cv2/.dylibs/QtCore (0x1086267f0)
and /Users/pierre/anaconda3/lib/libQt5Core.5.9.7.dylib (0x122fc0a80).
One of the two will be used. Which one is undefined.
From what I understand, I just have to indicate which one to use but I don't find anything about how to do it. Also, It seems to be a recurrent error on Mac.
I had this error on my Mac too. Apparently opencv's GUI tools were conflicting with the PYQT libraries that were also installed on my system in my anaconda/lib/ folder. So to give opencv just one set of GUI tools and since I wasn't sure what else was using PYQT in my lib, I chose to use the non-GUI version of opencv, aka opencv-python-headless. I previously had opencv-python-headless installed on my system, and maybe the two packages can't co-exist in the new version of OpenCV or with Catalina.
I removed opencv-python
pip uninstall opencv-python
uninstalled and reinstalled the headless version (which has no GUI tools)
pip uninstall opencv-python-headless
pip install opencv-python-headless
I don't know if it was necessary to remove then reinstall the existing headless package, but that's what I did. I wasn't sure that opencv-headless would find the PYQT in my lib but it didn't have any problems.
I have been trying to install all these libraries for the QEMU build but they seem to throw various errors one after the other. I am spending so much time installing these libraries and solving the errors. Is there any easy way where I can get the whole package installed? or a guide on how to install?
Update: I was working with MingW and understood I could install few libraries from their installers or with command ming-get. But Libgcrypt is still not installed
I've been working with Haskell lately, and installed gtk2hs (a gtk library for Haskell) a few days ago using MacPorts. For some reason, MacPorts saw fit to install GHC 6.10 over my previous GHC 6.12 install, but I didn't really care.
Now I find myself desiring the improved parallelism support of the latest Haskell Platform, so I installed it today, and it installed successfully - except that when I type in "ghc -v" in Terminal, I am informed that I have GHC 6.10 still.
I have tried using uninstall-hs, and it informs me that I have three Haskells on my system: versions 6.12, 6.12.3, and 7.04. I'm not sure how that 6.12.3 showed up, and what happened to the 6.10? Most importantly, how can I start running version 7.04? Thanks in advance for your help!
You should completely purge your MacPorts install of GHC and your current Platform installation and install the Haskell Platform directly with the OS X installer. After that, future versions of the Haskell Platform can be upgraded to cleanly simply by installing them.
The following command should remove your MacPorts GHC:
$ sudo port uninstall --follow-dependents ghc
You might want to execute something like find /usr /opt/local -name '*ghc*' after uninstalling everything to check that there's no remaining traces.
To really clear out the old install, you've got to go in and delete things by hand.
This will be very useful: Everywhere that GHC/Haskell Platform installs
Might want to look here also: http://www.vex.net/~trebla/haskell/sicp.xhtml
Ok, I know how to install Perl modules with cpan and have been doing it for years. But when I try to install the DateTime module on this particular mac, it fails, claiming that it cannot find a compiler.
Here is some of the output from attempting to install one of the prerequisites, Params::Validate: ( I get the same kinds of errors from attempting to install the module in question.)
Configuring Params-Validate-1.00
Running Build.PL
/usr/libexec/gcc/powerpc-apple-darwin10/4.2.1/as: assembler (/usr/bin/../libexec/gcc/darwin/ppc/as or /usr/bin/../local/libexec/gcc/darwin/ppc/as) for architecture ppc not installed
Installed assemblers are:
/usr/bin/../libexec/gcc/darwin/x86_64/as for architecture x86_64
/usr/bin/../libexec/gcc/darwin/i386/as for architecture i386
lipo: can't open input file: /var/tmp//cc3Aefez.out (No such file or directory)
Warning: ExtUtils::CBuilder not installed or no compiler detected
Proceeding with configuration, but compilation may fail during Build
Why is Build.PL looking for a ppc compiler? If that is the problem where do I tell it (or cpan, or cpanm) that this machine is not a ppc box?
I'm running 10.6.8. The version of perl is v5.10.0 built for darwin-thread-multi-2level
I most definitely have the Developer tools installed.
I'm running cpan and cpanm via sudo.
I'd be grateful for any assistance anyone can offer.
known problem with Xcode on Lion, Apple couldn't help messing around with nm, breaking Perl again (previously) and who knows what else
p5p discussion
perlbrew's info
You are on an unsupported Perl. Upgrade to stable.
I've got 10.7 installed which comes with Perl 5.12.3 installed. I did a CPAN install:
$ sudo cpan
password:
cpan> install DateTime
And, the whole thing works. Is this something you need for a third party file, or do you want to use this because you're familiar with this particular package?
There are several built in Time packages with Perl 5.10. Would one of these work for you? Otherwise, you might need to install ExtUtils::CBuilder and see if that helps.
Or, install a more modern version of Perl such as ActiveState which is pretty simple to install, its cpan utility works pretty good on a Mac, and it's version 5.14 which is even newer than the version that comes with Lion.
I think what's happening is that the installer is trying to compile something (possibly an XS module) and to do that it needs to use the same compiler that was used to compile whichever version of Perl is on your system, and it can't find it.
Your best bet would be to install your own version of Perl 5.10 using perlbrew as this gaurantees the compiler is available (make sure you edit your .profile so Terminal uses your new Perl), then re-open Terminal, switch to the perlbrew version of Perl 5.10 and you should be fine from then on.
If you have problems installing the perlbrew Perl then as daxim noted above refer to the Lion fix
I have a Qt application that I can compile in Ubuntu 10.04 64-bit and on Windows. However, I would like to avoid switching to Windows every time I want to compile the Windows version.
Is there a way I can compile a Windows Qt executable in Ubuntu with mingw32 or something?
Further, is there a way to integrate that compiler into Qt Creator?
There is a PPA (Personal Package Archive) for some people who are cross-compiling Qt and related software on Ubuntu for Windows. The PPA contains both the cross-compilers and the dependencies you will need to cross-compile Qt programs. If you look at the source packages there, I think you will be able to figure out how to configure your projects and build them.
If you most of your time spend coding with Qt on Linux (for example, Ubuntu), you may produce some experiment: install Wine, install Qt SDK for Windows with Wine and tried to build some simple project!
And if you don't like crazy things, which I wrote above, just use VirtualBox.